Front Impact Sensor(FIS)located at both sides of the front of engine room detects head-on collision. When FIS delivers collision signal to SRSCM, Driver FIS if safing sensor located in SRSCM detects collusion.
and if both FIS and safing sensor detects collision simultaneously, SRSCM operates front air bag.
The SRSCM sets DTC B1326 if there is short to ground in DFIS harness.
Item | Detecting Condition | Possible cause | |
DTC Strategy |
•
Check voltage |
•
Short to ground in harness.
•
Faulty DFIS.
•
Faulty SRSCM. | |
Enable Conditions |
•
Ignition "ON" | ||
Threshold Value |
•
DFIS no acceleration data, and line voltage < 3V | ||
Diagnostic Time | Qualification |
•
Ini(Start Up):2.1s (2 times)
•
Steady:500μs x 8 + 2.2s (2 times) | |
De-Qualification |
•
Ini(Start Up):1 time
•
Steady:1 time | ||
